My First Dr.'s Appointment

Yesterday was my first OB appointment. He estimates that my due date is Oct. 18 which puts me at about 16 weeks pregnant. The heartbeat was really strong and very easy to find - it was 160. I have an ultrasound scheduled for May 11 to confirm the due date. Since we weren't expecting this I wasn't keeping track, that's why there's a question. We always hope to find out the gender of the little baby at the ultrasound. I'm guessing boy. Any takers?